Ge2Mg2O6
Ge2Mg2O6 is a wide-gap insulating oxide that maintains near-hull thermodynamic stability, making it a promising candidate for experimental synthesis.
About Ge2Mg2O6
Ge2Mg2O6 is a wide-gap insulating oxide composed of germanium, magnesium, and oxygen. Its electronic character suggests it functions as a dielectric material, while its thermodynamic proximity to the hull indicates it is a viable candidate for experimental synthesis and structural characterization.
With a high degree of structural diversity reported across multiple databases, this compound serves as a key subject for understanding oxide phase stability. Its composition allows for complex lattice arrangements, making it a valuable system for exploring the interplay between germanium-based coordination and magnesium-oxygen frameworks.
Key Properties
Cross-validated computational properties for Ge2Mg2O6, aggregated across 4 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Ge2Mg2O6, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| C2/c (No. 15) | monoclinic | 2.53 | 0.0117 | -6.773 | 4.43 |
| Pbca (No. 61) | orthorhombic | 3.05 | 0.0128 | -6.772 | 4.30 |
| R-3 (No. 148) | trigonal | 3.63 | 0.0318 | -6.753 | 4.76 |
| Cmcm (No. 63) | orthorhombic | 2.47 | 0.1414 | -6.644 | 5.28 |
| Pm-3m (No. 221) | cubic | 1.55 | 0.5250 | -6.260 | 4.68 |
| R-3 (No. 148) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 0.53 |
| Cmcm (No. 63) | — | — | — | — | — |
| R-3 (No. 148) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
Applications
Where Ge2Mg2O6 is used.
Frequently Asked Questions
Common questions about Ge2Mg2O6, answered from cross-validated data.
What is Ge2Mg2O6?
Ge2Mg2O6 is a wide-gap insulating oxide that maintains near-hull thermodynamic stability, making it a promising candidate for experimental synthesis.
What is Ge2Mg2O6 used for?
What is the band gap of Ge2Mg2O6?
Is Ge2Mg2O6 a metal, semiconductor, or insulator?
Is Ge2Mg2O6 thermodynamically stable?
What is the crystal structure of Ge2Mg2O6?
What is the density of Ge2Mg2O6?
How many polymorphs of Ge2Mg2O6 are known?
What elements does Ge2Mg2O6 contain?
Where does the data for Ge2Mg2O6 come from?
How It Compares
As a distinct oxide system, Ge2Mg2O6 occupies a unique position within the broader landscape of ternary germanium-magnesium oxides. It serves as a foundational reference point for exploring structural variations in this chemical space, particularly where high-symmetry coordination environments are required for specialized insulating applications.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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